Rulla Sabah, Nisreen Kais Abood and Mustafa Hammadi (2026) “Optimization and validation of a rapid RP-HPLC method for the simultaneous quantification of codeine and diazepam in bulk and pharmaceutical dosage forms”, Applied Chemical Engineering, 9(2), p. ACE-5937. doi: 10.59429/ace.v9i2.5937.